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Sr. Site Reliability Engineer
Mastercard
O'Fallon, MissouriPosted Oct 14, 2026 · 3h ago$96K – $163K
Full-time$96K – $163KSenior levelFintech
About this role
Mastercard is seeking a Senior Site Reliability Engineer to ensure the reliability, scalability, and performance of our global payment systems. You will be a thought leader, driving automation and mentoring teams to build resilient products. This role involves proactive engagement in the development lifecycle, focusing on operational design, capacity planning, and robust monitoring to maximize customer experience and mitigate risk.
What we are looking for
6- Ensure production readiness and stability of Mastercard's platform
- Drive automation and scripting for operational workflows and incident response
- Mentor development teams on software run principles and resilient design
- Perform triage, root cause analysis, and blameless post-mortems
- Collaborate with development teams on reliability solutions and operational standards
- Implement observability solutions using metrics, logs, and traces
Skills mentioned
6PythonAWSAzureGCPLinuxCI/CD
